chore(deps): update codecov/codecov-action action to v6

Author: renovate[bot]

.github/workflows/ci.yml

@@ -29,4 +29,4 @@ jobs:
       - run: pnpm build
         if: matrix.os == 'ubuntu-latest'
       - run: pnpm vitest --coverage
-      - uses: codecov/codecov-action@v5
+      - uses: codecov/codecov-action@v6